From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from omx2.sgi.com (omx2-ext.sgi.com [192.48.171.19]) by ozlabs.org (Postfix) with ESMTP id 813F867A5E for ; Wed, 30 Aug 2006 10:56:29 +1000 (EST) Date: Tue, 29 Aug 2006 16:57:35 -0700 (PDT) From: Christoph Lameter To: Nishanth Aravamudan Subject: Re: libnuma interleaving oddness In-Reply-To: <20060829231545.GY5195@us.ibm.com> Message-ID: References: <20060829231545.GY5195@us.ibm.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: Christoph Lameter Cc: linux-mm@kvack.org, lnxninja@us.ibm.com, ak@suse.de, linuxppc-dev@ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Tue, 29 Aug 2006, Nishanth Aravamudan wrote: > I don't know if this is a libnuma bug (I extracted out the code from > libnuma, it looked sane; and even reimplemented it in libhugetlbfs for > testing purposes, but got the same results) or a NUMA kernel bug (mbind > is some hairy code...) or a ppc64 bug or maybe not a bug at all. > Regardless, I'm getting somewhat inconsistent behavior. I can provide > more debugging output, or whatever is requested, but I wasn't sure what > to include. I'm hoping someone has heard of or seen something similar? Are you setting the tasks allocation policy before the allocation or do you set a vma based policy? The vma based policies will only work for anonymous pages.